Lawn-mower attachment.



E. JANSON.

LAWN MOWER ATTACHMENT.

APPLIOATION FILED JULY 25,1912.

' Patented July 1, 1913.

2 SHEETS-SHEET 1.

[n yen for L B. JANSON.

LAWN MOWER ATTACHMENT.

APPLICATION FILED JULY 25, 1912. 1,0 5,94 Patented July 1, 1913.

2 SHEETS-SHEET 2.

new and; useful Mower, Attachments, of which. the following snares PATENT onion,

Rm-JANSQN, OE TERRE'H AU'DE, INDIERN A.

- Lawnmower nmraen mm;

Bpeciflliatiomof mammkppiibationfiled m 25, 19 2-. Serial no. 711,563.

, Patentedlmy r, was.

To. all whom it may concern:

Be known that I, EMlL J NsoN, a citizen of theU'nited States,. and a. resident of the. cityof Term Hautm', county of Vigo, and State of' Indiana,.have invented certain Improvementsin Lawnan untidy and unfinished appearance since which,

. Fig; 2. is ,an enlarged the. groove or trench at the edge of the lawn,. should appear in order to finish the latter jet black. 4

It is the object of my invention to provide an attachment for alawn mower through. the medium of which the grass bordering upon the groove at the edge ofthe lawn may be readily cut and the groove itself maintained apparently free from severed grassblades. j

A further object is the production of an attachment as mentioned which will be d'u-- rable and economical-in construction,-and efiicient in operation, i Other objects will appear hereinafter.

The invention consists in the combinations: and arrangements of parts hereinafter'diescribed and claimed; i

The invention will be best understood by' reterence to the accompanying. drawings torming a part of'this specification, and in Figure L is a. perspective view of a: con-- ventionallawn mower towhich is" applied! an attachment embodyi my invention,

s ifijstantially front elevation of the supporting anm included? in. the attachment, Figs. 3 and 4' are sec tions taken on substantially lines Ir-a: and g y, respectively of. Fig.2, and Fig. 5- is a: sectional detail of the drum which is incliuded in the construction.

The preferred fiorm of' construction asportin groove on trenchat its edge,

fforation 11' tion of'said' supporting arm to lock the for termed with a' tubular jforsupporting. one endo'fa laterally projecting. spindle M t-he latter being secured .in the .which penmits of rotatable ad- Ijilstment ofsaid' spindle.

illustrated-in the drawings comprises a suparm 1 which is adapted. to be declamped to one. of the rigid frame bars. 2: of a conventional mower which indicated at 3'. The: means of attaching arm 1 to the bar 2. comprises hook members 4: which; are. adapted to embrace the bar 2, the shanks of members. 4 engaging. loops 5 provided. at thev opposite sides 0i the reanward end of arm 1, nuts 6 threaded upon said shanks and which engage against. the

forward extremity of the loops 5 serving as a means of holding members 4' in clamping relation. with bar 2, as will be readily understood. The arm 1 is of jointed constructiorn. the lower end" portion thereof being pivotally secured at 8 to the upper end portion so as to permit of saidflower' end portion being swung-upwardly as shown in dotted lines. in Fig. 1,to\inoperative position when the attachment is not in use. The

lower end portion of arm I is locked in operative or inoperat'lveposition by means of a movable pin 9 which is adapted. to engage an opening. 10 provided in. the lower end of the upper ort'ion ofi said supportin arm to lock the ormer in operative pos1' tion, said. pin being adapted to engage per provided in said upper pormer in elevated or inoperative position. A stop-12 is provided against which the lower end portion of arm 1 is adapted to abut in orderto osi'tion the same to efi'ect'regist'ration of pin 9 with opening 10.

Thelow'er end of s pporting arm 1 is hearing. portion 13 portion 13 by means of set screw 1-5 I ltbt-at-ably mounted upon theouter end of spindle 14 is a .drun1\16,'.which, when. the device is in use,

is. adapted tov contact with the ground and to rotate by frictional engagement therewith. The .outer extremity of drum 10 is 1 provided with an outwardly projecting cir cumterential flange 17, engage against the edge of the sidewalk on like upon which the lawn mower is travelwhich is adapted to ing, and serve as a gage to-maintain the device inoperative proximity with the walk edge and hence with the lawn groove or trench-which extends along the walk as clearly shown in Fig. 1. Fixed to'the outer end "of drum 16 in spaced relation with flange 17 is a circular toothed cutter member 18,- the teeth of which, when rotated, are adapted to cotiperate with the stationary cutter member 19 toefiect the cuttmg of the grass blades bordering upon the lawn groove, stationary cutter member 19 being 5 curved plow 20 which is adapted, when the device is in use, to pierce the bottom of the lawn groove adjacent the sidewalk and turn the ground over so as to burythe blades of grass which have been severed by the cutting members 18 and 19 and which have fallen into the groove. The members 19 and 20 are rigidly secured to the outer end of spindle 14 so that adjustment thereof in order to properly position the same may be efiected by simply loosening the set screw 15 and adjustin said shaft 145,

A device, of t e construction set forth is simple and economica in construction, the same may be readil manipulated and through the employment thereof the groove at the edge of a lawn may be maintained in proper condition.

7 While I have illustrated and described the preferred form of' construction for carrying my invention into'efl'ect, this is capable of variation and modification without departing f rom the spirit of the invention. I, therefore, do not 'wish to be limited to the exact details of construction set forth, but desire toavail myself of such variations and modifications as come within the scope of the appended claims. 1

Having described my invention what I claim as new and desire tosecure by Letters Patent is:

1. An attachment for an ordinary lawn mower for trimming the edge of a lawn'and comprising a supporting member adapted to be secured to said mower; a drum rotatably mounted upon said supporting memher; a rotatable toothed cutter supported by said supporting member arranged adjacent said drum; and a stationary cutter member supported by saidsupporting member arranged for cooperation with said rotatable toothed cutter in the cutting operation, substantially vas described. I

2., An; attachment for an ordinary lawn mower for trimming the edge of a lawn and comprlsing a supporting member adapted to be secured to' said mower; a drum rota: tably mounted upon said supporting member; a rotatable toothed cutter supported by said supporting member arranged adjacent said drum; a stationary cutter member sup-' I orted by said supporting member arranged or coiiperation with said rotatable toothed cutter in the cutting operation; and a. plow supported by said supporting member adapted, in the operation of the device, to turn over the soil to bury the blades of grass severed by said cutter members, substantially as described; p

- 3. In a device pf, the class described, the combination of a rotatable drum; an annular'gage flange at one end of said drum; a

rotatable toothed cutter spaced from said end of said drum; a stationary cutter member arranged for cooperation with said rotatable toothed cutter in the cutting operation; and a plow arranged co-planer with said gage flange for turnlng over the soil to bury the blades ofgrass severed by said outter members, substantially as described.

4. An attachment for a lawn mower comprising a supporting arm adapted to be detachably clamped to'said mower; a laterally projecting splndle carried by said arm; a drum rotatably mounted upon said spindle; a tubular cutter member rotatably mounted .upon said spindle and spaced slightly from the adjacent end of said drum; a stationary cutter member arranged for cooperation with-said rotatable toothed 'cutter in the cutting operation; and a plow 'adapted, during the operation of the device,

to turn over the soil to bury the blades; of grassisevered by said cutter members, sub stantially asdescribed.

5. An attachment for a lawn mower, comprisin a jointed supportin arm permitting o the outer end thereof being'swung to inoperative position; means'for locking said arms in either operative or inoperative positions; a laterally projecting spindle carried by said arm; a drum rotatably mounted upon said spindle; a toothed cutter member rotatably mounted upon said spindle and spaced slightly from the adjacent end of said drum; a stationary cutter member arranged for coiiperation with said rotatable toothed cutter in the cutting operation; and

.a plow adapted, during the operation of the device, to turn over the soil to bury the blades of grass severed by said cutter mem-' bers, substantially as described.

6. A lawn mower attachment comprising a supporting arm adapted to be detachably clamped to said mower; a non-rotatable laterally projecting spindle carried by and rotatably adjustable in said supportin arm; a drum rotatably mounted upon said spindle; an outwardly projecting annular gage flange at the outer end of said drum; a

toothed cutter member rotatably mounted upon said spindle and spaced slightly from said outer end of said drum; a stationary cutter member fixed to said s indle arranged for cooperation with sai rotatable toothed cutter in the cutting operation; and

9. low fixed to sai 1 spindle and arrangedv name to this specification in' the presence of ma staratially go-planer with iaiill gage flange two subscribing witnesses. v

a apte in t e 0 eration 0 t e evice to turn over the 05 to bury the b1ades of JANSON 5 grass severed by sald cutter members, sub- Witnesses:

stantially as described. WALTER D. NISB T,

In testimony whereof Lhave signed my ROBERT W. NICHOLSON. 

